| abstract |
The method for manufacturing the fructus lycii pericarp extract containing zeaxanthin and/or its ester, the described method comprises the following steps: a) obtain the fragment that dry fructus lycii pericarp or its size reduce；And the fragment that b) the fructus lycii pericarp of the drying of acquisition or its size reduce in step a) with solvent extraction, wherein the solvent is selected from ethyl acetate, hexane, heptane, petroleum ether, acetone, butane, methyl ethyl ketone, methanol, isopropanol and its mixture；And extract c) obtained from step b) removes solvent；And d) optionally, the ester in the dry extract obtained in step c) is cracked；And e) optionally, the dry extract obtained in step c) or step d) is crystallized in the CH alcohol of acyclic straight or branch.Preferably, the method is only made of step a) given above to step e). |